linux-kernel - [PATCH] iommu/io-pgtable: Make IOMMU_IO_PGTABLE

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Date:   Tue, 27 Sep 2022 15:36:01 +0200
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Sven Peter <sven@...npeter.dev>, Janne Grunau <j@...nau.net>,
        Hector Martin <marcan@...can.st>
Cc:     iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH] iommu/io-pgtable: Make IOMMU_IO_PGTABLE_DART invisible

There is no point in asking the user about both "Apple DART Formats" and
"Apple DART IOMMU Support", as the former is useless without the latter,
and the latter auto-selects the former.

Fixes: 745ef1092bcfcf3b ("iommu/io-pgtable: Move Apple DART support to its own file")
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
Should IOMMU_IO_PGTABLE_LPAE and IOMMU_IO_PGTABLE_ARMV7S be made
invisible, too?
Are there users that do not select them?
---
 drivers/iommu/Kconfig | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index dc5f7a156ff5ec73..f1affca6022e0a54 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -68,16 +68,13 @@ config IOMMU_IO_PGTABLE_ARMV7S_SELFTEST
 	  If unsure, say N here.
 
 config IOMMU_IO_PGTABLE_DART
-	bool "Apple DART Formats"
+	bool
 	select IOMMU_IO_PGTABLE
-	depends on ARM64 || (COMPILE_TEST && !GENERIC_ATOMIC64)
 	help
 	  Enable support for the Apple DART pagetable formats. These include
 	  the t8020 and t6000/t8110 DART formats used in Apple M1/M2 family
 	  SoCs.
 
-	  If unsure, say N here.
-
 endmenu
 
 config IOMMU_DEBUGFS
-- 
2.25.1